Preoperative echocardiographic predictors for 1-year mortality in patients treated with standard endovascular aneurysm repair for abdominal aortic aneurysm

Tomas Ohrlander, Magnus Dencker, Stefan Acosta

Department of Clinical Physiology and Nuclear Medicine, Vascular Center, Malm?, Sweden.
Department of Surgery, Eksj? County Hospital, Eksj?, Sweden.
Lund and Sk?ne University Hospital, Malm?, Sweden.

DOI: 10.4236/wjcd.2013.33043                

Abstract

Background: Abdominal aortic aneurysm (AAA) and cardiovascular disease are intimately associated, the latter representing the most common cause of death in Sweden. Cardiac complications are held responsible for the majority of perioperative morbidity and mortality in patients undergoing repair of AAA. The importance of preoperative thorough cardiac assessment is therefore obvious. The aim of this study was to evaluate the prognostic significance of preoperative echocardiographic findings for 1-year mortality after elective endovascular aneurysm repair (EVAR) of infrarenal AAA. Design: Retrospective analysis. Methods: The 505 patients were identified in a prospective database for endovascular interventions between 1998 and 2011, and data were retrieved from patient records. Preoperative echocardiography reports in 380 patients were reviewed and findings were notified according to a predefined protocol. Results: The 1-year mortality rate was 6.7%. Severe valve disease was present in 8.7% of the patients, aortic valve stenosis being the leading cause of valve pathology. Severe valve disease (OR 3.5, 95% CI [1.2 - 10.7]; p = 0.025) and chronic kidney disease grade ≥ 3 (OR 7.5, 95% CI [2.1 - 26.1]; p = 0.002) were the only independent risk factors for increased mortality rate at 1-year. Conclusion: Echocardiography should be a part of the preoperative workup in AAA patients. Finding of severe valve disease should be further evaluated by a cardiologist prior to EVAR.

Keywords

Echocardiography; EVAR; Abdominal Aortic Aneurysm; Valve Disease; Aortic Valve Stenosis

Conflicts of Interest

The authors declare no conflicts of interest.

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